Atomic absorption spectroscopy has proved to be a versatile tool in measuring concentrations of trace metals . 原子吸收光谱法已证明是一种用于测定痕量的金属浓度的灵活多用的仪器。
It can carry out the production by single machine and the four machines can be operated jointly 四、可单机生产,也可四机联合作业,具有一机多用的功能。
Otherwise you get trapped in a whirlwind of multitasking where you start many things and finish nothing 否则你会陷入一个一心多用的漩涡,那时你将在做许多事情却一件也完成不了。
Plus , the lid and bottom are joined whit a four - barrel hinge , rahter than the current five - barrel 另外,相对于现在多用的五铰链工艺,这款打火机在盖子的上盖与底部的联接采用的是四铰链
Activemq is a proven best - of - breed , open source java messaging service engine with a swiss - army - knife arsenal of features and connectivity options Activemq是一个经验证的最佳开源java消息服务( jms )引擎,该引擎还附带一个精巧多用的功能和连接选项库。